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Accreditation – Trust in our competence

Worldwide recognition

Logo SAS STS 0301

SPF Testing is accredited by the Swiss Accreditation Service (SAS) under the registration number STS 0301 as a testing laboratory for systems and components for the provision of heat in buildings and for testing durability and optical-thermal properties of exterior components in accordance with ISO 17025.

This accreditation guarantees the worldwide recognition of the tests performed at our laboratory through international agreements such as the International Laboratory Accreditation Co-operation (ILAC).

Solar Keymark

SPF Testing is recognised as Solar Keymark testing laboratory and as inspection body by several international certification companies.

   dincertco.de      icim.it    gr.dqs-ul.com     certif.pt      ri.se
Logos Solar Keymark Zertifizierer



SPF Testing is recognised by the Solar Rating & Certification Corporation™ (SRCC). This means that our tests of collectors and systems are recognised in the United States of America.

Energy Star

Logo Energy Star

SPF Testing is an EPA-recognized testing laboratory that can carry out testing of residential water heaters to ENERGY STAR requirements. Certified ENERGY STAR products will be listed under ENERGY STAR’s product finder.

Global Solar Certification Network


SPF Testing is a proud member of the Global Solar Certification Networks.


As an accredited testing laboratory SPF Testing is bound to respect confidentiality. Private details are not disclosed to third parties and any documents you provide us with will be treated with the utmost discretion and confidentiality.